Clamp for telescopes of transits



Dec. 9, 1952 c. o. ROTHWEiLE'R 2,520,564

CLAMP FOR TELESCOPES 0F TRANSITS Filed April 15, 1948 2 SHEETS-SHEET 1l5 l8 v5 I 1 15' INVENTOR. CHARLES O. ROTHWEILER 4 Tm/PME).

1952 c. o. ROTHWEILER 2,620,564

CLAMP FOR TELESCOPES 0F TRANSIT S Filed April 13, 1948 I 2 SHEETS-SHEET2 IO l9 I9 20 28 4&

I 20 28. 25 E v I g- INVENTOR.

CHARLES O. ROTHWE l LER ATTORNEK Patented Dec. 9, i952 (JL'AMP FOBTELESCOPE-S 'IRANSITS Charles '0. Rothweiler, Milwaukee, Wis., assignm-'to David White Company, Milwaukee, Wis.

Application April 13, 1948,-Serial No. 120,781

3 :Claims. (01. 33-46) fil . My invention relates to c'lamps {and moreparticularly to an improved clamp for supporting a telescopeas part of.a transit assembly. 7 An..object voflmy invention .is .to provideresiliency in the clamping arrangement, thereby pro- .viding positivecontact within the adjustable Eblock.

Still another object of my invention is to insure any degree of minuteadjustment, due to the resiliency of-th'e stationary block.

A still further object of my invention is to provide a devicethat easyto assemble, easy to adjust, variable initsscope and economical tomanufacture.

It is manifest that when locking the telescope of a transit into a,horizontal position, minute adjustments are imperative for properspotting operation. ,It is common practice to slidably rmoye :apair ofclamping blocks vertically on a vertical slide to accomplish thecorrectalignment clamp the blocks in position :on the vertical :slide :memberso that the telescope may :be pre- Ytained :in -a pre-determ-inedposition. With the device illustrated, claimed and specified herein itis possible to adjust the clamping blocks on the vertical slide topermit additional adjustment against the resilient structure, to providemicrometer adjustment of the telescope in a horizontal plane.

Other and further objects of my invention will become more apparent asthe description proceeds and when taken in conjunction with the drawingsin which Figure l is a side view of the transit head showing thetelescope in an angular position disengaged from the retaining blockswhich act as clamps.

Figure 2 is a top view of the device as shown in Figure 1.

Figure 3 is an end view of the clamp arrangement taken at the line 3-3in Figure 1.

Figure 4 is a front view of the clamp arrangement as shown in Figure 3.

Figure 5 is a cross-sectional view of the clamp arrangement taken atline 5-5 in Figure 4, and

Figure 6 is a cross-section of the upper adjust ment block taken at theline 66 in Figure 5.

Similar characters of reference indicate corre sponding parts throughoutthe several views, and referring now to the same, the character In showsa telescope of any conventional design pivotally mounted at H withinframe members I2 and I2 forming a part of the base I3 which is rotatablymounted on a conventional support assembly shown as M. The frame memberI2 is shown pro- .12 vided with :a pair :of angular retaining {members 15 and t5 pivota1lymounted at El 6 to .the :mem- :ber 124 The retainingmembers 15 and 15' are equipped with engagin members I and lever members1'8,

The telescope -l-0;is shown equipped with-a pair of collars 19 havinga-chanhel section 20 verticallyidisposed at theforward face,and'ahorizom tal portion 2| extending outwardover and above the channel124 :A threaded adjustment screw 2-2 engages the portion 2i and isretained by a k lnutmem'ber 2 3 engaging the outwardly extending radialflange Mon the screw 22. There .are shown a pair'of iclamping blocks 25and 2,6 slidably engaging in 'the' groove 01' channelin "the channelsection 20 and retained in position by meansof :screws 2-1threadedly-engaging thesliding =rnembers v 28 disposed within thevertical ggl-QOVE.

The lower block '26 is provided with a resilient .member '29 in theform-oi afiat spring -rattached to the -.one side :of the block 2.6 bymeans of :the screws 3.0 and extending in an arch across the upper faceof the block, and having its depending end 3! suspended withoutattachment. This will permit resilient clamping action when the engagingmember I! is disposed between the slidably moved block 25 and the fixedblock 26 and pressure is exerted upon the members I! by revolving thescrew 22 threadedly engaging the block 25.

In operation the blocks 26 are rigidly supported in the channel sections20 by means of the screws 21 in a position whereby the members I! of theretaining members [5 and I5 contact the upper arcuate faces of theresilient members 29 mounted on the blocks 26. This will permitadjusting the blocks 25 within the channel sections 20 and bymanipulating the screws 22, it will cause the blocks 25 to movevertically against or away from the spring tension of the members 29 forclamping the engaging members H, which in turn would adjust thehorizontal plane of the telescope shown as 10.

Obviously, the two sets of clamp blocks on either side of the pivotedmounting ll of the telescope I!) will permit a very minute adjustment ofthe telescope Ill and will retain it in any predetermined position.

In the chosen embodiments of my invention there are features notheretofore disclosed in the prior art, and although I have shown aspecific structure and particular arrangement of the component parts, Iam fully cognizant of the fact that many changes in the form andconfiguration of the component parts may be made without afiecting theiroperativeness and without departing from the spirit of my invention orthe scope of the appended claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent in the United States is:

l. A device of the character described to be used in combination with atelescope pivotally mounted on a base, said device comprising a collarmember engaging the outer periphery of said telescope, said collarmember having a vertical face, a channel disposed in said face, and ahorizontal portion extending outward from said face at one end of saidchannel, a pair of clamping members slidably engaging in said channel,one of said clamping members arranged for fastening in said channel in afixed position and provided with a resilient means attached at one ofits ends and extending over the upper face of said clamping member, ascrew, said screw mounted in the horizontal portion of said collarmember and extending into the other of said clamping members to allowvertical adjustment toward and away from the resilient means over theface of said fixed clamping member.

2. A device of the character described to be used with a telescopepivotally mounted on a base having retaining members disposed therein,said device comprising a collar member engaging the outer periphery ofsaid telescope, said collar member being provided with a verticalchannel, and a horizontal member extending above said channel, a pair ofclamping elements slidably mounted on the face of said channel, anadjustment screw mounted in the horizontal member, said screw threadedlyengaging the upper of said clamping elements, resilient means attachedto the lower of said clamping elements and extending across the upperface of the lower of said clamping elements, means for retaining thelower clamping element in a fixed position in said channel, therebypermitting adjustment of said upper clamp element relative to theresilient means on 4 the lower element when one of said retainingmembers of said base is disposed between said clamping elements.

3. A device of the character described to be 1 used with a telescopepivotally mounted on a base having retaining members disposed therein,said device comprising a collar member engaging the outer periphery ofsaid telescope, said collar member being provided with a verticalchannel, a horizontal member integral with the collar and extendingoutward above said channel, a pair of clamping elements slidably mountedon the face of said channel, an adjusting screw provided with anoutwardly extending flange, said screw being threadedly engaged in theupper of said clamp elements, a retaining member threadedly engaging thehorizontal member for contact with the flange on said screw for lockingsaid screw in position, resilient means attached to the lower of saidclamping elements and extending across the upper face of the lower ofsaid clamping elements, means for retaining the lower clamping elementin a fixed position on said channel, thereby permitting adjustment ofsaid upper clamping element relative to the resilient means of saidlower clamping element, when a retaining member of said base is disposedbetween said clamping elements.

CHARLES O. ROTHWEILER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,135,153 Berger Apr. 13, 19151,663,546 Geier Mar. 27, 1928 1,754,138 Agee Apr. 8, 1930 1,882,528Rothweiler Oct. 11, 1932 2,132,170 Langsner Oct. 4, 1938 2,511,975French et al June 20, 1950

